1 /* 2 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP 26 #define SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP 27 28 #define OBJECT_SAMPLE_DESCRIPTION_BUFFER_SIZE 100 29 30 #include "memory/allocation.hpp" 31 32 class outputStream; 33 34 class ObjectDescriptionBuilder : public StackObj { 35 private: 36 char _buffer[OBJECT_SAMPLE_DESCRIPTION_BUFFER_SIZE]; 37 size_t _index; 38 39 public: 40 ObjectDescriptionBuilder(); 41 42 void write_text(const char* text); 43 void write_int(jint value); 44 void reset(); 45 46 void print_description(outputStream* out); 47 const char* description(); 48 }; 49 50 class ObjectSampleDescription : public StackObj { 51 private: 52 ObjectDescriptionBuilder _description; 53 oop _object; 54 55 void write_text(const char* text); 56 void write_int(jint value); 57 58 void write_object_details(); 59 void write_size(jint size); 60 void write_thread_name(); 61 void write_thread_group_name(); 62 void write_class_name(); 63 void write_object_to_buffer(); 64 bool is_class(Symbol* s1, const char* s2); 65 void ensure_initialized(); 66 bool read_int_size(jint* result); 67 68 public: 69 ObjectSampleDescription(oop object); 70 void print_description(outputStream* out); 71 const char* description(); 72 }; 73 74 #endif // SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP